Contacts of the strand formed by residues 178 - 181 (chain F) in PDB entry 3PRJ
Residue contacts within the protein are
derived with the CSU software (Sobolev V., Sorokine A.,
Prilusky J., Abola E.E. and Edelman M. (1999) Automated
analysis of interatomic contacts in proteins.
Bioinformatics, 15, 327-332). A
short description of the analytical approach
is given at the end of the page.
Note:
Non-standard 3 letter residue
codes indicate a heterogroup. To identify
and analyse, use LPC software
Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC - hydrophobic-hydrophilic contact (destabilizing contact)
+/- - indicates presence/absence of a specific contacts
* - indicates residues forming contacts by their side chain
(including CA atoms)
Residues in contact with VAL 178 (chain F).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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159F ASN* 4.1 6.3 - - - +
162F PHE* 5.2 0.9 - - - -
175F PRO* 4.1 20.6 - - + -
177F ARG* 1.3 79.2 - - - +
179F LEU* 1.3 62.1 + - - +
180F ILE* 4.1 13.7 - - + -
199F TYR* 3.9 48.9 - - + -
203F VAL* 4.3 10.5 - - + -
207F LYS 2.9 6.3 + - - -
208F ILE* 4.0 15.9 - - + -
209F LEU* 2.7 32.6 + - - +
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Residues in contact with LEU 179 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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254E ALA* 4.3 18.2 - - + -
159F ASN* 2.9 20.3 + - - +
160F PRO* 3.4 20.2 + - + +
162F PHE* 3.9 34.8 - - + -
177F ARG* 4.4 4.2 + - + -
178F VAL* 1.3 75.6 - - - +
180F ILE* 1.3 60.5 + - - +
209F LEU* 3.5 21.3 - - + +
211F THR* 4.1 22.9 - - + -
216F SER* 3.6 33.4 - - - +
219F SER* 3.9 14.1 - - - +
220F LYS 4.8 0.7 - - - +
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Residues in contact with ILE 180 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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157F LEU* 4.3 8.5 - - + -
158F SER 3.4 4.7 - - - +
159F ASN* 3.8 12.8 - - - +
178F VAL* 4.1 17.0 - - + -
179F LEU* 1.3 79.7 - - - +
181F GLY* 1.3 61.9 + - - +
182F GLY 4.2 0.2 + - - -
192F VAL* 3.8 30.2 - - + +
195F LEU* 4.0 34.8 - - + -
196F CYS* 3.9 28.7 - - - +
199F TYR* 4.2 4.3 - - + -
208F ILE* 4.3 4.9 - - + -
209F LEU 2.9 12.4 + - - +
210F THR* 3.3 5.4 - - + -
211F THR* 2.9 26.9 + - - +
216F SER* 4.6 1.8 - - - -
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Residues in contact with GLY 181 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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157F LEU* 3.3 11.3 - - - +
158F SER 2.7 37.9 + - - -
180F ILE* 1.3 76.7 - - - +
182F GLY* 1.3 58.3 + - - -
211F THR 3.2 7.9 - - - -
212F ASN 3.7 14.8 - - - -
213F THR* 3.6 8.5 - - - +
216F SER* 3.9 8.5 + - - -
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A short description of the
analytical approach
The contact analysis used in this page
is based upon the approach
developed in:
Sobolev V., Wade R.C., Vriend G.
and Edelman M. PROTEINS (1996)
25, 120-129.
Contact legitimacy depends on the hydrophobic-hydrophilic
properties of the contacting atoms. In order to
define it, for each inter-atomic contact,
eight atom classes have been introduced:
I Hydrophilic - N and O that can donate and accept hydrogen bonds
(e.g., oxygen of hydroxyl group of Ser. or Thr)
II Acceptor - N or O that can only accept a hydrogen bond
III Donor - N that can only donate a hydrogen bond
IV Hydrophobic - Cl, Br, I and all C atoms that are not in
aromatic rings and do not have a covalent bond to
a N or O atom
V Aromatic - C in aromatic rings irrespective of any other
bonds formed by the atom
VI Neutral - C atoms that have a covalent bond to at least one
atom of class I or two or more atoms from class II
or III; atoms; S, F, P, and metal atoms in all cases
VII Neutral-donor - C atoms that have a covalent bond with only one
atom of class III
VIII Neutral-acceptor - C atoms that have a covalent bond with only
one atom of class II
For each pair of contacts the state of legitimacy
is shown below:
Legend:
+, legitimate
-, illegitimate
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Atomic class I II III IV V VI VII VIII
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I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
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Warning!
Atom classes for heterogroups are automatically
assigned based on the atomic coordinates. However, in
three cases (see below) the automatic assignment
is currently ambiguous. In these
cases, the user is advised to manually analyse
the full list of contacts using
LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are
considered "aromatic" (Class V) if the ring is approximately
planar, and "hydrophobic" (Class IV) or "neutral" (Classes
VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
"hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
"carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).
Please E-mail any
questions and/or suggestions concerning this page to
Vladimir.Sobolev@weizmann.ac.il